Growth of double-wall carbon nanotubes with diameter-controlled iron oxide nanoparticles supported on MgO

Hiroki Ago; Kazuhiro Nakamura; Shingo Imamura; Masaharu Tsuji

doi:10.1016/j.cplett.2004.04.110

Growth of double-wall carbon nanotubes with diameter-controlled iron oxide nanoparticles supported on MgO

Hiroki Ago, Kazuhiro Nakamura, Shingo Imamura, Masaharu Tsuji

Research output: Contribution to journal › Article › peer-review

77 Citations (Scopus)

Abstract

We have studied the growth of carbon nanotubes by chemical vapor deposition (CVD) on the nanoparticles of iron oxide with two different diameters, 4 and 10 nm, supported on MgO powder. Both nanoparticles catalyzed the growth of double-wall carbon nanotubes (DWNTs) together with a small amount of single-wall carbon nanotubes (SWNTs). We found that the inner- and outer-diameters of the DWNTs were modified by the initial nanoparticle size; smaller nanoparticles catalyzed the growth of the DWNTs with smaller diameters. These results suggest that the MgO support strongly influence the catalytic activity of nanoparticles by reduction of the catalytically-active size.

Original language	English
Pages (from-to)	308-313
Number of pages	6
Journal	Chemical Physics Letters
Volume	391
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2004.04.110
Publication status	Published - Jun 21 2004

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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abstract = "We have studied the growth of carbon nanotubes by chemical vapor deposition (CVD) on the nanoparticles of iron oxide with two different diameters, 4 and 10 nm, supported on MgO powder. Both nanoparticles catalyzed the growth of double-wall carbon nanotubes (DWNTs) together with a small amount of single-wall carbon nanotubes (SWNTs). We found that the inner- and outer-diameters of the DWNTs were modified by the initial nanoparticle size; smaller nanoparticles catalyzed the growth of the DWNTs with smaller diameters. These results suggest that the MgO support strongly influence the catalytic activity of nanoparticles by reduction of the catalytically-active size.",

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T1 - Growth of double-wall carbon nanotubes with diameter-controlled iron oxide nanoparticles supported on MgO

AU - Ago, Hiroki

AU - Nakamura, Kazuhiro

AU - Imamura, Shingo

AU - Tsuji, Masaharu

PY - 2004/6/21

Y1 - 2004/6/21

N2 - We have studied the growth of carbon nanotubes by chemical vapor deposition (CVD) on the nanoparticles of iron oxide with two different diameters, 4 and 10 nm, supported on MgO powder. Both nanoparticles catalyzed the growth of double-wall carbon nanotubes (DWNTs) together with a small amount of single-wall carbon nanotubes (SWNTs). We found that the inner- and outer-diameters of the DWNTs were modified by the initial nanoparticle size; smaller nanoparticles catalyzed the growth of the DWNTs with smaller diameters. These results suggest that the MgO support strongly influence the catalytic activity of nanoparticles by reduction of the catalytically-active size.

AB - We have studied the growth of carbon nanotubes by chemical vapor deposition (CVD) on the nanoparticles of iron oxide with two different diameters, 4 and 10 nm, supported on MgO powder. Both nanoparticles catalyzed the growth of double-wall carbon nanotubes (DWNTs) together with a small amount of single-wall carbon nanotubes (SWNTs). We found that the inner- and outer-diameters of the DWNTs were modified by the initial nanoparticle size; smaller nanoparticles catalyzed the growth of the DWNTs with smaller diameters. These results suggest that the MgO support strongly influence the catalytic activity of nanoparticles by reduction of the catalytically-active size.

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